Functions

Others

Description

The chronograph Type XXII in steel with fly-back, frequency of 10 Hz and seconds hand AL center. The counter 30 seconds AL center. Escapement in silicon with high frequency. The wheel of the rocker Breguet in silicon with adjusting screws and spiral in silicon. The first and only movement chronographic realized in series with an escapement and spiral in silicon with frequency of 10 hertz (equal to 72,000 alternations per hour). Thanks to the extremely high frequency and to the extraordinary capacity of adjustment that it follows, the seconds hand chronograph of type XXII is able to perform a complete rotation in just 30 seconds. The strength of this technical innovation is the silicon: its use in fact allows to have the lighter components and to avoid the lubrication problems generated by the high frequencies. Movement with automatic winding with date and small seconds on counter of 30 seconds. Indicator 24 hours and indicator according to time zone.